Abstract
Based on the interpretation of GB 18352.6-2016 and combined with the author's actual development experience, the key design points and solutions of the three key problems of fuel system that meet China 6 emission regulations are described, Technical route selection of evaporative emission, definition of technical route of fuel tank and control strategy of tank pressure, evaporative emission control, etc..
Highlights
IntroductionEmissions and energy saving are two important issues currently facing the automotive industry
Emissions and energy saving are two important issues currently facing the automotive industry.Evaporative emissions means that due to the volatility of gasoline, part of the gasoline in the automobile fuel tank is discharged into the atmosphere in the form of gaseous volatilization directly or through the surface of the fuel tank, carbon canister, etc., causing atmospheric pollution
During the vehicle’s form, the engine may not work and adopt pure electric mode. Due to factors such as fuel sloshing temperature in the fuel tank, fuel vapor gradually increases. This will cause fuel vapor to overflow into the atmosphere after filling the carbon canister, which will pollute the environment, and it causes the performance of the carbon canister to decrease
Summary
Emissions and energy saving are two important issues currently facing the automotive industry. Evaporative emissions means that due to the volatility of gasoline, part of the gasoline in the automobile fuel tank is discharged into the atmosphere in the form of gaseous volatilization directly or through the surface of the fuel tank, carbon canister, etc., causing atmospheric pollution. Due to factors such as fuel sloshing temperature in the fuel tank, fuel vapor gradually increases. This will cause fuel vapor to overflow into the atmosphere after filling the carbon canister, which will pollute the environment, and it causes the performance of the carbon canister to decrease. Through the actual development experience of a certain vehicle model, the author of this article introduced the evaporative emission technology route selection, fuel tank technology route definition, pressure relief and refueling control strategy, and evaporative emission control for the fuel system to deal with the above problems
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